With the new clan wars update, any resources won will stay in your clan castle until you withdraw them. When you withdraw them, the game asks “are you sure?” which led me to wonder if there is any reason to keep them inside the clan castle.
What benefit, if any, is there to keeping resources in your clan castle?
Since clan castles generally have more hp than loot storage, they will be harder to be destroyed completely, and they will only receive loot once they have fully destroyed it.
According to this only 3% of the loot stored in your clan castle can be taken during a raid. Whereas 20% can be stolen from your gold storage and elixir storage according to the wiki.
Therefore it is safer to keep your loot in the clan castle if you don’t plan on spending it immediately.
Source : Link , Question Author : PileOfDuty , Answer Author : Dragonrage